Tool Location

Electonics

Tool Type

Testing

Additional Information

Overview

Multimeters are tools that can take a number of electrical measurements. These include AC and DC current, AC and DC voltage, resistance, continuity, and frequency.

Multimeters are tools that can take a number of electrical measurements. These include AC and DC current, AC and DC voltage, resistance, continuity, and frequency.

Capabilities

Voltage

The Multimeter can measure up to 1000 V

Current

The Multimeter can measure up to 3 Amps

Resistance

The Multimeter can measure a resistance of up to 1000 MΩ

PPE

No special PPE is required to use the Multimeter

Safety Features*

How To Use This Tool

Setup*

Content coming soon!

Operation

AC/DC Voltage Measurements

Plug the red lead into the HI node to the right, and the black lead into the LO node to the right (see image below). Press the DCV or ACV button to measure DC or AC voltage, respectively. Place the other end of the red lead on the positive side of the circuit or component, and the black lead on the other side and read the measurement displayed.

AC/DC Current Measurements

Plug the red lead into the REAR node, and the black lead into the LO voltage node (see image below). Press Shift and the DCV or ACV button to measure DC or AC voltage, respectively. Place the other end of the red lead on the positive side of the circuit or component, and the black lead on the other side and read the measurement displayed.

Resistance Measurements

Plug the red lead into the left HI node, and the black lead into the left LO node (see image below). Press the Ω2W to measure resistance. Place the other end of the red lead on one side of a component, and the black lead on the other side and read the measurement displayed.

Frequency and Period Measurements

Plug the red lead into the HI node to the right, and the black lead into the LO node to the right (same as for Measure AC/DC Voltage). Press the Freq button to measure frequency, and Shift + Freq to measure period. Place the other end of the red lead on the positive side of the circuit or component, and the black lead on the other side and read the measurement displayed.

Continuity Test

With the same set up as previous, press the Cont button to test continuity.

Check Diodes

With the same set up as previous, press Shift and the Cont button to test diodes.

Clean-Up
  1. Recover and secure finished part
  2. Unplug the nibbler
  3. Wrap up the cord in an organized manner.
  4. Stow the nibbler in the correct drawer.
  5. Cut off sharp or thin, elongated metal shards from remaining material using the nibbler or shears as appropriate.
  6. Use either a dustpan and brush or vacuum to clean up small metal debris and dust.
  7. Use a dustpan and brush to collect large metal waste (> 0.5” in any dimension) and dispose in trash can.
  8. Stow the dustpan, brush, and/or vacuum.
  9. Remove the waste material from the room, or discard with other scrap material.
Basic Troubleshooting

If the Multimeter Does Not Turn On

  • First, verify that the Multimeter’s power switch is in the “On” position. Also, make sure that the power cord is firmly plugged into the power module on the rear panel.
  • Verify the power-line voltage setting. Change the voltage setting if it is not 120V (AC).
  • Verify that the power-line fuse is good. The Multimeter is shipped from the factory with a 250 mA fuse installed. This is the correct fuse for all line voltages

References:

Keysight . (2014). Keysight 34401A 6 1/2 Digit Multimeter Service Guide (9th ed.) Santa Clara, CA.

Author Information

Article was written by Collin Morris

Last Updated: September 7 2018.

Love it? Share it!